In reply to Greenbanks:
Have to admit, I always found the beer at the Bree Louise hit and miss. Dozens of handpulls but you had about a one in three chance that the one you ordered would have turned into overpriced vinegar from having been on too long / dodgy cellaring. Good pies, though.
I'd agree with The Euston Tap - very close to the station, good for hipster beer and probably some opportunities to say "ow much?" at the price of things, although the cask tends to be relatively cheap for London. The Resting Hare is nearby and fairly decent if you want something slightly more pubby.
Post edited at 09:39